diff --git a/lib/genesis/utils/core/info.cpp b/lib/genesis/utils/core/info.cpp
index 6b665590..252193c2 100644
--- a/lib/genesis/utils/core/info.cpp
+++ b/lib/genesis/utils/core/info.cpp
@@ -883,7 +883,7 @@ int get_physical_core_count_( size_t n_cpu )
         }
         return cores.size();
     #else
-        void(n_cpu);
+        (void) n_cpu;
         return 0;
     #endif
 }